Steam-boiler.



Patentedvlune I8, IQUI. No. 676,722' F J MANNEY & D. w. WATKINS.

2 Sheets-Sheet I.

STEAM BOILER.

(Applition led Oct. 20, 1900.) (No Model.)

No. 676,722. Patented June I8, |901. F. J. MANNEY & D. W. WATKINS.

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(Application filed Oct. 20, 1900.) (No Model.) 2 Sheets-Sheet 2.

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ATENT FLORANOE J. MANNEY AND DANIEL VEBSTER VATKINS, OF DAVENPORT,

IOWA, ASSIGNORS OF ONE-THIRD TO A. B. FRENIER, OF SAME PLACE.

STEAM-BOILER.

srEoIFIcA'rroN forming part of Lettere Patent No. 676,722, dated June 1s, 1901.

`Application tiled October 20,1900. Serial No, 33,766. (No model.)

T0 @ZZ whom it may concern:

Be it known that we, FLoRANcn J. MANNEY and DANIEL WEBSTER WATKINs, of Davenport, Scott county, Iowa, have invented certain new and useful Improvements in Steam- Boilers; and we hereby declare that the following is a full, clear, and exact description thereof, reference being had tothe accompanying drawings, which form part of this speci fication. p

This invention is an improvement in steamboiler furnaces, and has particular reference to the means for producing rapid circulation of water through the lower part of the boiler, where ordinarily the water is most quiet, and thusin a large measure preventing the deposit or accumulation of scale; and a further object is to provide the exterior water-circulating portion of the apparatus with a scaletiap located at the lowest point of the apparatus and exterior to the boiler and drum, so that scale and mud deposits can be ejected by opening the blow-o cocks.

The invention therefore consists in the novel construction of that portion of the water circulating and heating a paratus exterior to the boiler proper, as wi l be hereinafter described and claimed, and illustrated in the accompanying drawings, in which Figure lis a perspective view, partly in section, of the complete apparatus. Fig. 2 is a longitudinal section through the same. Fig. 8 is a bottom plan View.

Referring to the drawings, Adesignates a tubular or iiue steam-boiler of any suitable construction, a brick-set boiler being illustrated in the drawings.

B represents the fire-chamber, O the bridgewall, and D the outlet-flue, extending from the bridge-wall beneath the boiler to and communicating with the uptake, all as in the usual construction of boilers of this type. On top of the bridge-wall O and forming part thereof is a drum E, to the upper side of which and near its opposite ends are connected forwardly-extending Water-circulating pipes F, which pass through the irechamber B and are connected by suitable bends fto the front end of the boiler at a point near the bottom of the boiler and preferably below the majority of the water-tubes therein, so that water will enter the boiler from the pipes F at a point near the bottom of the boiler and where the water is ordinarily the most quiet, and usually in ordinary boilers at these points the greatest deposit of scale takes place, iucreasing the liability ot' burning out and explosion of the boiler.

To the. rear side of the drum E, at a 'point below the connection of the pipes F thereto, but also near the opposite ends thereof, are attached pipes G, which extend rearwardly to the end of the boiler and then are connected by inwardly-directed bends g to a verclined upwardly from rear to front, so as to facilitate the circulation of the water. A detiector-plate e is placed in drum E intermediate the connections of pipes G and F thereto to prevent short-circ uiting of water through the drum, this partition causing the Water entering from pipes G to circulate around in the drum and thence up into pipes F and preventing deposits in the drum.

The pipe H extends below the connections of pipes G thereto, and the lower part of the pipe H forms a trap 7L, into which the scale, mud, dac., collected in the boiler is deposited by the circulation of the water. A trans verse wall J is built across the boiler-setting immediately in front of the pendent trap-pipe 7L at the rear end of the boiler, its object being to lower the temperature of the trap, thereby inducing a settlement of solid particles, owing to the fact that water at this point will have little or no motion. The temperature is lowered by preventing the heat from the furnace directly striking the trap, owing to the presence of this wall. The trap 7L may be connected with a blow-oft pipe I, suitably IOO `boiler by the pipes H. This arrangement of pipes, drum, and connections causes a natv ural circulation of the water, which is increased as the temperature rises, and as the heating-pipes connect only with the waterspace-of the boiler and near the bottom thereof a natural circulation of water from front to rear of the boiler is produced, by which scale, sediment, &c., in the boiler will be swept back to the pipe H and caught in the trap h, from which it can be conveniently blown off.

Having thus described our invention, what :we therefore claim as new, and desire to secure by Letters Patent thereon, is-

1. The combination with a tubular steamboiler, of a water-heating drum or inclosed receptacle arranged transversely to and be- An eathgsaid boiler, in proximity to the bridgewall, pipes located above the drum and extending through the upper part o f the rechamber and directly connecting the upper part of the drum with the front end of the boiler, and pipes connecting the drum with the rear end of the boiler, said pipes being connected to the drum at points below the connection of the first-mentioned pipes therevwvith, for ,the purpose of inducing a rapid and continuous circulation of water in and through the pipes, drum and boiler, all substantially as described.

2. The combination of a boiler, the waterheating drum under the boiler, pipes directly connecting said drum with the front part of the boiler, said pipes opening into the waterspace of the boiler below the tubes, a vertical pipe connected with the rear end of the boiler and opening into the bottom thereof,

' and-the pipes communicating with said vertical pipe above its lower end by their rearL ends and with the drum at their forward ends at a point below the connection of the firstmentioned pipes therewith, substantially as described. 3. In a boiler-furnace the combination of a boiler, a drum under the boiler forming part of the bridge-wall, pipes connecting the upper part of said drum with the front waterspace of the boiler below the tubes, and a vertical pipe connected with the rear end of the boiler and opening into the bottom thereof, with the pipes communicating with said vertical pipe by their rear ends and with said drum at their forward'ends, and a deflector in said drum located intermediate the connections of the front and rear pipes therewith, substantially as and for the purpose described.

4. The combination of a boiler, a drum located upon and forming the upper part of the bridge-wall, the opposite pipes connected at their rear ends to the top of the drum and extending forwardly and connected at their front ends to the front end of the boiler, a pipe attached to the rear end and bottom of the boiler and depending therefrom, the lower portion of said pipe forming a scale-trap, opposite pipes connected to said trap-pipe at a point above the lower end thereof and extending forwardly to and communicating with the drum, and the draw-off pipe connected with the lower end of the trap-pipe, for the purpose and substantially as described;

5. In a boiler-furnace, the combination of a boiler, a tire-chamber and bridge-wall, and a drum located upon and forming the upper part of the bridge-wall, and opposite pipes connected at their rear ends to thel top of the drum and extending forwardly through the fire-chamber and connected at their front ends to the front end of the boiler; with a pipe attached to the rear end and bottom of the boiler and depending therefrom, the lower portion of said pipe forming a scale-trap, opposite pipes connected to said trap-pipe at a point above the lower end thereof and extending forwardly to-and communicating with the drum at a point below the connections of the first-mentioned pipes thereto, a deflectingplate in said drum to prevent direct ow of water from the rear to the front pipes, and the draw-off pipe connected with the lower end of the trap-pipe, for the purpose and substantially as described.

6. In a boiler-furnace the combination of a boiler, a drum under the boiler forming part of the bridge-wall, pipes connecting the upper part of said drum with the front waterspace of the boiler below the tubes, and a vertical pipe connected with the rear end of the boiler and opening into the bottom thereof, with the pipes communicating with said vertical pipe by their rear ends and with said drum at their forward ends at a point below the connection of the first-mentioned pipes therewith and a deliectorin said drum located intermediate the connections of the front and rear pipes therewith, and a suitable blow-off pipe connected to the under side of said drum for the purpose of blowing out of drum any deposit of mud or other substance which may find lodgment therein, substantially as and for the purpose described.

7. The combination of a boiler, a drum located upon and forming the upper part of the bridge-wall, the opposite pipes connected at their rear ends to the top of the drum and extending forwardly and connected at their front ends to the front end of the boiler, a pipe attached to the rear end and bottom of the boiler and depending therefrom, the lower portion of said pipe forming a scaletrap, opposite pipes .connected to said trappipe at a point above the lower end thereof and extending forwardly to and communicating with the drum at a point Vbelow the con- Iig neetions of the first-mentioned pipes thereto, our own We affix our signatures in presence and the drew-off pipe connected with the lower of two witnesses. v

end of the trap-pipe, and a transverse pro- FLORANCE J. MANNEY. teeting-Wallconstructedimmediatelyin front DANIEL WEBSTER WATKNS. of said trap-pipe, for the purpose and sub- Witnesses:

stztntially as described. FRED W. REIMERS,

In testimony that We claim the foregoing as 1 GEO. MINEHAN. 

